supply grinding wheel, polishing wheels, non-woven wheels, unitized wheel, polishing dishes, flap wheels, hand pads, rolls, rollers, flap rollers, flap brushes, discs, interleaved flap wheels, convolute wheels, unitized disc, interleaf finishing flap brushes. No blockage, good brightness, excellent grinding effect, durable for use, workpiece's surface can keep for a standard.